Pet structure



FIG. 1 is a front perspective view of the pet structure, with casters shown in dashed line format and forming no part of the invention hereof, and with a cat shown in dashed line format to illustrate use and environment and also forming no part of the invention hereof; and

FIG. 2 is a front plan view;

FIG. 3 is a rear plan view;

FIG. 4 is a right side view which is a mirror image of the left side view;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view. 

The ornamental design for a pet structure, as shown and described. 